I tested an upgrade from Jammy to Kinetic today (after the ubuntu-meta change) and I saw that firefox was in the list of packages to be installed during the upgrade.
Remove (was auto installed) gir1.2-mutter-10 gnome-bluetooth gnome-todo-common libevent-2.1-7 libfwupdplugin5 libgnome-bg-4-1 libgnome-desktop-3-19 libgnome-desktop-4-1 libmutter-10-0 pipewire-media-session
Install: at-spi2-common attr cpp-12 dbus-bin dbus-daemon dbus-session-bus-common dbus-system-bus-common endeavour endeavour-common firefox g++-12 gcc-12 gir1.2-gnomedesktop-4.0 gir1.2-gweather-4.0 gir1.2-javascriptcoregtk-4.1 gir1.2-mutter-11
So no changes in ubuntu-release-upgrader are necessary to make this work.
I tested an upgrade from Jammy to Kinetic today (after the ubuntu-meta change) and I saw that firefox was in the list of packages to be installed during the upgrade.
Remove (was auto installed) gir1.2-mutter-10 gnome-bluetooth desktop- 3-19 libgnome- desktop- 4-1 libmutter-10-0 media-session
gnome-todo-common libevent-2.1-7 libfwupdplugin5 libgnome-bg-4-1
libgnome-
pipewire-
Install: at-spi2-common attr cpp-12 dbus-bin dbus-daemon session- bus-common dbus-system- bus-common endeavour gnomedesktop- 4.0 2-gweather- 4.0 gir1.2- javascriptcoreg tk-4.1 gir1.2-mutter-11
dbus-
endeavour-common firefox g++-12 gcc-12 gir1.2-
gir1.
So no changes in ubuntu- release- upgrader are necessary to make this work.